During a physical workout ones physical appearance is flushed red, warm to the touch, and perspiration is usually all over and give the person a shiny tint. All of these are healthy reactions unlike the man who has cool, clammy, moist skin with beads of perspiration. The body has to work hard along with the heart during exercise, there is more blood pumped through the body with every beat and is continuously working at its maximum level. Valves inside the heart open and close which controls the amount of blood entering or leaving the heart. Extensive vascular enlargement happens as the oxygen increases in the skeletal muscles. While peripheral resistance decreases, blood flow in the capillaries is faster, and the blood enters the venous system faster.
This acceleration of the venous portion also makes blood flow faster to the skeletal muscles, cardiac muscles, and skin. Red skin shows the increased blood flow because the arteries and capillaries are becoming larger; also this is the same reason for the rise in body temperature. The cardiovascular system is the mechanism responsible for the changes in the appearance. While the blood to the heart and body is affected the blood supply to the brain is not. The gentleman’s body is experiencing the opposite of the person working out because blood flow throughout the body decreases causing the arteries and capillaries to clasp which in return makes the skin cool and clammy. He is still sweating because his body is trying to keep blood flowing but it is difficult and the body temperature is dropping. The cardiovascular system is a continuous process that is essential to homeostasis. It transports oxygen, carbon dioxide, blood cells, delivers nutrients and hormones: removes waste products; assists in temperature regulation and is a defense against disease.
A pulse is the rhythm that can be felt because of the expansion and contraction of arteries resulting from surges of blood through the arteries. In a health individual a normal resting pulse averages between 60 and 72 beats per minute. But when there is some type of injury to the brain such as a stroke the pulse decreases like the mans who’s pulse slowed to 50. Within the brain there are arteries that branch into smaller ones and then into capillaries which supplies oxygen and nutrients that keep the brain functioning.
<标题>When this blood supply is disrupted the brain cells die and bleeding in the brain/cranial cavity occurs. During the bleeding brain cells in the core areas are stunned and disabled, but still alive. The brain stem is damaged and because of this it’s main responsibilities for controlling unconscious vital functions like blood pressure and the hearts beating. So when the brain stem is either stunned or damaged the individual experiences a slow heart rate. People need to maintain a normal pulse to keep the heart beating normally along with regulation of blood throughout the body and brain.